Proxy HTTP/TCP-based HAProxy Production-Quality https://github.com/facebook/mcrouter HTTP proxy nginx https://github.com/vulcand/oxy https://github.com/cyfdecyf/cow MySQL proxy https://github.com/flike/kingshard https://github.com/mariadb-corporation/MaxScale Others https://github.com/cactus/go-camo (image proxy) https://github.com/zalando/skipper https://github.com/badgerodon/socketmaster https://github.com/flike/kingshard https://github.com/vektra/templar https://github.com/google/martian